US2828695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary machine
Assignee: Individual
•
Filing: 1955-01-31
•
Granted: 1958-04-01
•
Expires: 1975-01-31
Abstract
No abstract record available.
Inventors
- 👤 Marshall John Wilmott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:57
CPC Classifications
F; F01; F01C; F01C3/00; F01C3/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2043544A
Cited
US2101428A
Cited
US2101051A
Cited
GB462054A
Cited
US2242058A
Cited
US2318386A
Cited
US2475096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |